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CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #27 - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #27

The CHICAGO-LATROBE Aircraft Extension Drill: #27 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11151, MPN 11151) with a 0.1440-inch diameter, 12-inch overall length, 135° split point, and black…

SKU 3G-OTH-207990

Brand
CHICAGO-LATROBE
Item
NAS-Spec HSS Aircraft-Extension Drill Bit #27
Part Number
11151
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
Available to Order
Also known as:11151CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11151
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #27 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11151, MPN 11151) with a 0.1440-inch diameter, 12-inch overall length, 135° split point, and black oxide finish. It conforms to NAS 907 Type B specifications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #27 used for?

This drill is designed for aerospace and industrial applications requiring deep-hole drilling in tight spaces. Its 12-inch overall length and NAS 907 Type B compliance make it suitable for aircraft maintenance, sheet metal fabrication, and structural assembly where precision and reach are critical.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #27?

The drill has a #27 wire gauge diameter of 0.1440 inches, 12-inch overall length, 135° split point, and black oxide finish on high-speed steel. It conforms to NAS 907 Type B specifications and carries MPN 11151. The split point reduces walking and improves hole accuracy.

Where to buy the CHICAGO-LATROBE Aircraft Extension Drill #27 worldwide?

3G Electric supplies the CHICAGO-LATROBE Aircraft Extension Drill #27 (SKU 3G-OTH-207990) worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct aircraft extension drill bit for deep-hole drilling?

Choose a drill with sufficient overall length to reach the hole depth without excessive overhang. For aerospace work, ensure NAS 907 Type B compliance and a split point for accurate starts. The CHICAGO-LATROBE #27 drill offers a 12-inch length and 135° split point for such applications.

Used in

Common applications for CHICAGO-LATROBE
Aerospace manufacturing — Chicago-Latrobe NAS-spec jobber-length drill bits (e.g., MPN 42631) for drilling holes in airframe components.
Metal fabrication — Chicago-Latrobe single-flute countersinks (e.g., MPN 56774) for deburring and chamfering holes in steel plates.
Machine shop — Chicago-Latrobe 82° countersinks (e.g., MPN 56738) for creating flush-mount recesses for flat-head screws in assemblies.
Maintenance and repair — Chicago-Latrobe 90° countersinks (e.g., MPN 56760) for chamfering holes and removing burrs on industrial equipment.
Automotive production — Chicago-Latrobe HSS drill bits for holemaking in engine blocks and chassis components.
General machining — Chicago-Latrobe countersinks in various body diameters for chamfering and deburring in job shops.
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CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE nas-spec high-speed steel aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Black oxide high-speed steel aircraft-extension drill bit with 135° split point and 12" overall length. Conforms to NAS 907 Type B. Used for drilling deep holes in aircraft structures and other tight-access industrial applications
CHICAGO-LATROBE
Black oxide high-speed steel aircraft-extension drill bit with 135° split point and 12" overall length. Conforms to NAS 907 Type B. Used for drilling deep holes in aircraft structures and other tight-access industrial applications
This NAS 907 Type B aircraft-extension drill bit is made from high-speed steel with a black oxide finish. It features a 135° split point for reduced walking on curved surfaces and an extended 6-inch overall length for reaching confined areas. Suitable for drilling in tough alloys in aerospace and precision metalworking applications
CHICAGO-LATROBE
This NAS 907 Type B aircraft-extension drill bit is made from high-speed steel with a black oxide finish. It features a 135° split point for reduced walking on curved surfaces and an extended 6-inch overall length for reaching confined areas. Suitable for drilling in tough alloys in aerospace and precision metalworking applications

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